package com.example.shiro.utils;

import org.apache.http.NameValuePair;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.client.utils.URIBuilder;
import org.apache.http.entity.ContentType;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.util.EntityUtils;

import java.io.IOException;
import java.net.URI;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;

/**
 * 作者: jujh
 * <pre>
 * 功能: 跨域访问
 * ps:
 * 时间: 2017年7月21日 下午1:43:46
 * </pre>
 */
public class HttpClientTools {
    public static String doGet(String url, Map<String, String> param) throws Exception {

        // 创建Httpclient对象  
        CloseableHttpClient httpclient = HttpClients.createDefault();

        String resultString = "";
        CloseableHttpResponse response = null;
        try {
            // 创建uri  
            URIBuilder builder = new URIBuilder(url);
            if (param != null) {
                for (String key : param.keySet()) {
                    builder.addParameter(key, param.get(key));
                }
            }
            URI uri = builder.build();

            // 创建http GET请求  
            HttpGet httpGet = new HttpGet(uri);

            //设置请求时间和连接超时时间
            //RequestConfig config  = RequestConfig.custom().setConnectTimeout(5000).setConnectionRequestTimeout(1000).setSocketTimeout(5000).build();
            //httpGet.setConfig(config);
            // 执行请求  
            response = httpclient.execute(httpGet);
            // 判断返回状态是否为200  
            if (response.getStatusLine().getStatusCode() == 200) {
                resultString = EntityUtils.toString(response.getEntity(), "UTF-8");
            }
        } catch (Exception e) {
            //e.printStackTrace();
            throw new Exception();
        } finally {
            try {
                if (response != null) {
                    response.close();
                }
                httpclient.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
        return resultString;
    }

    public static String doGet(String url) throws Exception {
        return doGet(url, null);
    }

    public static String doPost(String url, Map<String, String> param) {
        // 创建Httpclient对象  
        CloseableHttpClient httpClient = HttpClients.createDefault();
        CloseableHttpResponse response = null;
        String resultString = "";
        try {
            // 创建Http Post请求  
            HttpPost httpPost = new HttpPost(url);
            // 创建参数列表  
            if (param != null) {
                List<NameValuePair> paramList = new ArrayList<>();
                for (String key : param.keySet()) {
                    paramList.add(new BasicNameValuePair(key, param.get(key)));
                }
                // 模拟表单  
                UrlEncodedFormEntity entity = new UrlEncodedFormEntity(paramList, "utf-8");
                httpPost.setEntity(entity);
            }
            // 执行http请求  
            response = httpClient.execute(httpPost);
            resultString = EntityUtils.toString(response.getEntity(), "utf-8");
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            try {
                response.close();
            } catch (IOException e) {
                // TODO Auto-generated catch block  
                e.printStackTrace();
            }
        }

        return resultString;
    }

    public static String doPost(String url) {
        return doPost(url, null);
    }

    public static String doPostJson(String url, String json) {
        // 创建Httpclient对象  
        CloseableHttpClient httpClient = HttpClients.createDefault();
        CloseableHttpResponse response = null;
        String resultString = "";
        try {
            // 创建Http Post请求  
            HttpPost httpPost = new HttpPost(url);
            // 创建请求内容  
            StringEntity entity = new StringEntity(json, ContentType.APPLICATION_JSON);
            httpPost.setEntity(entity);
            // 执行http请求  
            response = httpClient.execute(httpPost);
            resultString = EntityUtils.toString(response.getEntity(), "utf-8");
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            try {
                response.close();
            } catch (IOException e) {
                // TODO Auto-generated catch block  
                e.printStackTrace();
            }
        }

        return resultString;
    } 
	
/*	public static String unCompress(String str) throws IOException {
        if (null == str || str.length() <= 0) {
            return str;
        }
        // 创建一个新的 byte 数组输出流
        ByteArrayOutputStream out = new ByteArrayOutputStream();
        // 创建一个 ByteArrayInputStream，使用 buf 作为其缓冲区数组
        ByteArrayInputStream in = new ByteArrayInputStream(str
                .getBytes("ISO-8859-1"));
        // 使用默认缓冲区大小创建新的输入流
        GZIPInputStream gzip = new GZIPInputStream(in);
        byte[] buffer = new byte[256];
        int n = 0;
        while ((n = gzip.read(buffer)) >= 0) {// 将未压缩数据读入字节数组
            // 将指定 byte 数组中从偏移量 off 开始的 len 个字节写入此 byte数组输出流
            out.write(buffer, 0, n);
        }
        // 使用指定的 charsetName，通过解码字节将缓冲区内容转换为字符串
        return out.toString("GBK");
    }*/
}
